docs: def format_cert_name(env='', account='', region='', certificate=None):
      """Format the SSL certificate name into ARN for ELB.
  
      Args:
          env (str): Account environment name
          account (str): Account number for ARN
          region (str): AWS Region.
          certificate (str): Name of SSL certificate
  
      Returns:
          str: Fully qualified ARN for SSL certificate
          None: Certificate is not desired
      """
      cert_name = None
  
      if certificate:
          if certificate.startswith('arn'):
              LOG.info("Full ARN provided...skipping lookup.")
              cert_name = certificate
          else:
              generated_cert_name = generate_custom_cert_name(env, region, account, certificate)
              if generated_cert_name:
                  LOG.info("Found generated certificate %s from template", generated_cert_name)
                  cert_name = generated_cert_name
              else:
                  LOG.info("Using default certificate name logic")
                  cert_name = ('arn:aws:iam::{account}:server-certificate/{name}'.format(
                      account=account, name=certificate))
      LOG.debug('Certificate name: %s', cert_name)
  
      return cert_name